Parameter

RUBASIA Virgin EPDM

Competitor with Regrind

Advantage

Tensile Strength

12-15 MPa

8-10 MPa

40% stronger

Elongation Retention

95% after aging

70% after aging

36% better

Service Life

18-24 months

10-14 months

70% longer

Batch Consistency

±2% variation

±10% variation

5x more consistent

Parameter

Peroxide-Cured (RUBASIA)

Sulfur-Cured (Standard)

Performance Gain

Continuous Heat Rating

150°C

120-130°C

+20-30°C

Compression Set (22h @125°C)

15-20%

35-45%

60% better recovery

Heat Aging (7d @150°C)

90% property retention

60% property retention

50% better retention

Steam Resistance

Excellent

Good

Superior longevity

Mill Benefit

• Extended Service Life: 2-3x longer than unprotected compounds

• Consistent Sealing Pressure: Maintains physical properties throughout life

• Reduced Maintenance Frequency: Fewer seal changes per year

Feature 4: Optimized Carbon Black Reinforcement

Technical Description

We utilize a precisely graded blend of N550 and N660 carbon blacks at optimized loading levels (40-60 phr) to achieve the perfect balance of:

• Tensile strength

• Tear resistance

• Abrasion resistance

• Compression set

• Processing characteristics

Carbon Black Science

Carbon black particles (20-50 nanometers) physically interact with polymer chains, creating a reinforcing network that:

• Transmits stress across the compound

• Prevents crack propagation

• Enhances abrasion resistance

• Controls modulus and hardness

Particle Size Distribution

Carbon Black Type

Particle Size (nm)

Primary Function

N550

40-48 nm

Processing, reinforcement

N660

49-60 nm

Resilience, compression set

Mill Benefit

• Abrasion Resistance: Withstands repeated door openings/closings

• Tear Strength: Resists damage from sharp edges or debris

• Load-Bearing Capacity: Supports compression without extruding

Feature 5: Precision Plasticizer System - Low-Temperature Flexibility

Technical Description

Our formulation incorporates high-purity paraffinic processing oils (10-20 phr) specifically selected for:

• Compatibility: Fully compatible with EPDM without bleeding or migration

• Low Volatility: Minimal loss at operating temperatures

• Low Temperature Performance: Maintains flexibility to -50°C

The Role of Plasticizers

Plasticizers work by:

1 Interposing between polymer chains, reducing intermolecular forces

2 Lowering glass transition temperature (Tg) for cold flexibility

3 Improving processability during extrusion

4 Enhancing flexibility for easy installation

Performance Data

Temperature

RUBASIA EPDM Flexibility

Standard EPDM

25°C (Room)

Excellent

Excellent

0°C

Excellent

Good

-20°C

Good

Stiff

-40°C

Flexible

Brittle

-50°C

Brittle point

Failed

Mill Benefit

• Easy Installation: Flexible even in cool morning conditions

• Follows Door Movement: Accommodates thermal expansion/contraction

• No Cold Cracking: Safe for storage in unheated warehouses

PART 3: DESIGN AND GEOMETRY FEATURES

Feature 6: Precision-Engineered L-Shape Geometry

Technical Description

Our L-Shaped profile is not a simple right angle but a precision-engineered geometry with specific radii, angles, and dimensions optimized for:

• Groove retention: Prevents seal blow-out during pressure cycles

• Self-energizing action: Uses system pressure to enhance sealing

• Compression characteristics: Optimized force-deflection curve

Dimensional Analysis

text

        A (Leg Height)

    <------------------>

    ____________________

   |                    |

   |                    |  C (Overall Height)

   |                    |

   |                    |

   |____________________|

   <------------------>

        B (Base Width)

Dimension

8.5mm Profile

9.5mm Profile

10.0mm Profile

Tolerance

A (Leg Height)

8.5 mm

9.5 mm

10.0 mm

±0.2 mm

B (Base Width)

16.5 mm

16.5 mm

16.6 mm

±0.3 mm

C (Overall Height)

20 mm

20 mm

20 mm

±0.3 mm

Corner Radius Engineering

• Internal Radius: 1.0 mm - Prevents stress concentration

• External Radius: 0.5 mm - Facilitates installation

• Leg Tip Radius: 0.3 mm - Ensures proper groove seating

Mill Benefit

• Perfect Fit: Matches steriliser door groove dimensions precisely

• No Movement: Stays in place during door operation

• Maximum Sealing Force: Optimized geometry for pressure activation

Feature 7: Self-Energizing Seal Design

Technical Description

The L-shaped geometry creates a self-energizing sealing mechanism where internal pressure actually increases sealing force proportionally.

The Physics of Self-Energizing Seals

Principle of Operation:

1 Initial State (Door Closed, No Pressure) : Mechanical compression of the L-leg provides initial sealing (approximately 10-15% compression).

2 Pressure Application: As steam enters and pressure builds, the medium exerts force on all exposed surfaces of the seal.

3 Force Amplification: The internal pressure acts on the inner surfaces of the L-geometry, pushing the seal more firmly against:

◦ The bottom of the groove

◦ The side wall of the groove

◦ The door frame sealing surface

4 Pressure Proportionality: Sealing force increases linearly with internal pressure:
F_seal = F_mechanical + (P_system × A_effective)
Where:

◦ F_seal = Total sealing force

◦ F_mechanical = Initial compression force

◦ P_system = Sterilizer internal pressure

◦ A_effective = Area of seal exposed to pressure

Performance Comparison

Aging Condition

RUBASIA EPDM

Standard EPDM

Original Tensile (MPa)

14.2

13.8

After 7 days @150°C

13.1 (92% retention)

9.2 (67% retention)

After 14 days @150°C

11.8 (83% retention)

6.5 (47% retention)

After 21 days @150°C

10.4 (73% retention)

4.1 (30% retention)

Carbon Black Type

Particle Size (nm)

Primary Function

N550

40-48 nm

Processing, reinforcement

N660

49-60 nm

Resilience, compression set

Temperature

RUBASIA EPDM Flexibility

Standard EPDM

25°C (Room)

Excellent

Excellent

0°C

Excellent

Good

-20°C

Good

Stiff

-40°C

Flexible

Brittle

-50°C

Brittle point

Failed

Dimension

8.5mm Profile

9.5mm Profile

10.0mm Profile

Tolerance

A (Leg Height)

8.5 mm

9.5 mm

10.0 mm

±0.2 mm

B (Base Width)

16.5 mm

16.5 mm

16.6 mm

±0.3 mm

C (Overall Height)

20 mm

20 mm

20 mm

±0.3 mm

Mill Benefit

• Leak-Free at Operating Pressure: Seals tighter as pressure increases

• Forgives Minor Misalignment: Higher force overcomes small gaps

• Energy Efficiency: No steam loss means lower fuel consumption

• Safety: Maintains seal during pressure fluctuations

Feature 8: Optimized Compression Ratio

Technical Description

Our L-Shaped packing is designed to provide the ideal compression ratio (15-20%) when the steriliser door is properly closed and torqued.

Compression Engineering

Compression ratio is defined as:

Compression Ratio = (Original Height - Installed Height) / Original Height × 100%

For EPDM in steriliser applications:

• Below 10%: Insufficient compression - potential for leakage

• 15-20%: Optimal range - maximum sealing with minimal stress

• Above 25%: Over-compression - premature failure, extrusion risk

RUBASIA Optimization

Profile

Original Height

Recommended Installed

Compression Ratio

8.5mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

9.5mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

10.0mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

Mill Benefit

• Longest Service Life: Operating in optimal stress range

• Maximum Sealability: Ideal deformation for gap filling

• No Over-Stressing: Prevents premature compression set failure

Feature 9: Precision Extrusion Tolerances

Technical Description

Our state-of-the-art extrusion lines maintain tight dimensional tolerances (±0.2 mm) throughout the entire length of every roll.

Tolerance Comparison

Parameter

RUBASIA Tolerance

Industry Standard

Advantage

Cross-section

±0.2 mm

±0.5 mm

60% tighter

Leg height

±0.15 mm

±0.4 mm

62% tighter

Base width

±0.2 mm

±0.5 mm

60% tighter

Overall height

±0.2 mm

±0.5 mm

60% tighter

Length (100 ft)

±0.5%

±2%

75% more accurate

How We Achieve It

1 Cold Feed Extruders: Precise temperature control

2 Laser Micrometers: Real-time dimensional monitoring

3 Automatic Adjustment: Closed-loop control systems

4 100% Inspection: Every meter verified

Mill Benefit

• Consistent Seal Force: No thin spots that leak

• No Rework: Fits every time, no trimming required

• Predictable Performance: Uniform compression around entire door

Feature 10: Continuous Vulcanization (CV) Process

Technical Description

Unlike batch-cured products, our EPDM packing undergoes continuous vulcanization in a multi-zone heating tunnel with precise temperature control.

CV Process Advantages

Pressure (bar)

RUBASIA Self-Energizing

Conventional Seal

0 (initial)

100% baseline force

100% baseline force

1.0 bar

180% force

100% force

2.0 bar

260% force

100% force

3.0 bar

340% force

100% force

Profile

Original Height

Recommended Installed

Compression Ratio

8.5mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

9.5mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

10.0mm × 20mm

20.0 mm

16.5-17.0 mm

15-17.5%

Parameter

RUBASIA Tolerance

Industry Standard

Advantage

Cross-section

±0.2 mm

±0.5 mm

60% tighter

Leg height

±0.15 mm

±0.4 mm

62% tighter

Base width

±0.2 mm

±0.5 mm

60% tighter

Overall height

±0.2 mm

±0.5 mm

60% tighter

Length (100 ft)

±0.5%

±2%

75% more accurate

Temperature Profile

Zone

Temperature

Function

Preheat

80-100°C

Warm-up, moisture removal

Cure Zone 1

160-180°C

Primary crosslinking

Cure Zone 2

170-190°C

Complete cure development

Cooling

Forced air

Stabilize, handle

Mill Benefit

• Uniform Properties: Consistent performance every meter

• No Soft Spots: Fully cured throughout cross-section

• Smooth Surface: No adhesion to door frame

• Any Length: Unlimited continuous production

PART 4: INSTALLATION AND HANDLING FEATURES

Feature 11: Pre-Measured 100-Foot Rolls

Technical Description

Our standard packaging provides exactly 100 feet (30.48 meters) of continuous packing per roll, with the length guaranteed and verified.

Why 100 Feet?

The 100-foot length is strategically chosen because:

• Typical door circumference: Most sterilizer doors require 15-25 feet

• Multiple doors: One roll serves 4-6 standard doors

• Handling weight: Approximately 8-10 kg per roll - one-person manageable

• Storage efficiency: Compact, stackable packaging

Length Verification

Verification Method

Accuracy

Frequency

Laser measurement

±0.1%

Every roll

Mechanical counter

±0.5%

Secondary check

Weight calculation

±1%

Final verification

Mill Benefit

• Exact Quantity: No guessing, no shortages

• Inventory Management: Easy to track usage

• Minimal Waste: Buy only what you need

• Easy Handling: One person can carry and install

Feature 12: Joint Endless Ring Option - No Field Splicing Required

Technical Description

For mills preferring factory-perfect installation, we offer precision-vulcanized endless rings in standard and custom diameters.

Ring Specifications

Standard Size

Inside Diameter

Circumference

Cross-section

Typical Application

RE-1700

1,700 mm

5,340 mm

As specified

Small vertical sterilizers

RE-2300

2,300 mm

7,225 mm

As specified

Standard horizontal sterilizers

RE-2700

2,700 mm

8,482 mm

As specified

Large horizontal sterilizers

RE-3200

3,200 mm

10,053 mm

As specified

Jumbo sterilizers

Custom Diameter Capability

• Range: 500 mm to 4,500 mm inside diameter

• Increment: Any size, no tooling charges

• Lead Time: 3-5 working days for custom sizes

• Tolerance: ±0.5% on circumference

Advantages Over Field-Spliced

Parameter

Continuous Vulcanization

Batch (Autoclave) Cure

Cure Uniformity

±2% throughout

±10% variation

Cross-section Density

Consistent

May vary end-to-end

Surface Finish

Smooth, defect-free

May have marks/flaws

Production Monitoring

100% real-time

Batch sampling

Length Capability

Unlimited

Limited by autoclave size

Zone

Temperature

Function

Preheat

80-100°C

Warm-up, moisture removal

Cure Zone 1

160-180°C

Primary crosslinking

Cure Zone 2

170-190°C

Complete cure development

Cooling

Forced air

Stabilize, handle

Verification Method

Accuracy

Frequency

Laser measurement

±0.1%

Every roll

Mechanical counter

±0.5%

Secondary check

Weight calculation

±1%

Final verification

Standard Size

Inside Diameter

Circumference

Cross-section

Typical Application

RE-1700

1,700 mm

5,340 mm

As specified

Small vertical sterilizers

RE-2300

2,300 mm

7,225 mm

As specified

Standard horizontal sterilizers

RE-2700

2,700 mm

8,482 mm

As specified

Large horizontal sterilizers

RE-3200

3,200 mm

10,053 mm

As specified

Jumbo sterilizers

Mill Benefit

• Faster Installation: Mill maintenance crews finish quickly

• No Joint Failure: Eliminates the #1 failure point

• Perfect Geometry: Guaranteed roundness for uniform compression

• Professional Result: Factory-perfect installation every time

Feature 13: Scarf-Cut Ends for Easy Splicing

Technical Description

When using bulk roll stock, our packing is supplied with factory-prepared scarf cuts at both ends, cut at the optimal 45° angle for field splicing.

Scarf Joint Engineering

text

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   |                    |

   |                    |

   |                    |

   |____________________|

        45° Cut

The 45° scarf joint provides:

• Maximum bonding surface: 1.4× the cross-sectional area

• Gradual transition: No stress concentration

• Self-aligning: Natural fit during installation

• Invisible splice: When properly installed

Scarf Joint Dimensions

Profile

Cut Length

Bonding Area

8.5mm × 20mm

28 mm

560 mm²

9.5mm × 20mm

28 mm

560 mm²

10.0mm × 20mm

28 mm

560 mm²

Mill Benefit

• Ready to Install: No on-site cutting required

• Stronger Joint: Optimal angle for maximum strength

• Professional Results: Even field splices look factory-made

• Time Savings: Eliminates measuring and marking

Feature 14: Color-Coded Identification

Technical Description

For quick identification, our different profiles feature subtle color coding integrated into the compound:

Profile

Color Code

Identification

8.5mm L-shaped

Black (Standard)

Natural EPDM black

9.5mm L-shaped

Blue stripe

Extruded blue indicator line

10.0mm L-shaped

Red stripe

Extruded red indicator line

Identification Benefits

• Instant Recognition: No need to measure before installation

• Inventory Control: Easy to verify stock levels

• Error Prevention: Reduces risk of incorrect size installation

• Audit Trail: Easy to verify what was installed

Mill Benefit

• No Mistakes: Maintenance crews instantly identify correct profile

• Faster Work: No stopping to measure cross-sections

• Better Inventory Management: Easy visual stock check

Feature 15: Anti-Stick Surface Treatment

Technical Description

Our EPDM packing receives a proprietary anti-stick surface treatment that prevents adhesion to metal surfaces while maintaining sealing performance.

The Science of Anti-Stick

During sterilization, rubber can adhere to metal surfaces due to:

• Chemical bonding at high temperature

• Mechanical interlocking in microscopic surface irregularities

• Van der Waals forces over large contact areas

Our treatment creates a micro-thin barrier layer that:

1 Prevents direct rubber-to-metal contact

2 Reduces friction coefficient

3 Resists high-temperature degradation

4 Maintains sealing properties

Performance Comparison

Parameter

Treated Surface

Untreated Surface

Friction Coefficient

0.4-0.5

0.8-1.2

Adhesion Force

Negligible

May stick significantly

Door Opening Force

Normal

May require extra force

Seal Damage on Opening

None

Possible tearing

Mill Benefit

• Easy Door Operation: No sticking or binding

• Seal Reusability: Can be repositioned if needed

• No Surface Damage: Seal remains intact when door opens

• Clean Removal: No residue left in groove

Feature 16: Memory-Free Packaging

Technical Description

Our rolls are packaged using a memory-free coiling technique that prevents the rubber from taking a "set" in the coiled shape.

The Memory Problem

When rubber is stored tightly coiled for extended periods:

• Polymer chains rearrange to the coiled shape

• The material develops a compression set in the curved configuration

• When installed, it tries to return to coiled shape rather than conforming to the door

RUBASIA Solution

Our packaging method:

1 Larger coil diameter: Minimum 300mm radius

2 Periodic reversal: Coiling direction alternated

3 Relaxation period: Material rested before packaging

4 Support core: Prevents sagging during storage

Mill Benefit

• Lays Flat: Conforms perfectly to door curvature

• No Coil Memory: Stays where you put it during installation

• Easier Installation: Doesn't fight back during fitting

• Better Seal: Maintains proper groove contact

PART 5: PERFORMANCE FEATURES

Feature 17: Exceptional Compression Set Resistance

Technical Description

Our peroxide-cured EPDM demonstrates superior compression set resistance, maintaining sealing force throughout the service life.

What is Compression Set?

Compression set measures a material's ability to return to its original thickness after prolonged compression. Lower values indicate better elastic recovery.

Compression Set (%) = (Original Thickness - Recovered Thickness) / Original Thickness × 100%

Test Results (ASTM D395 Method B)

Test Condition

RUBASIA EPDM

Industry Standard

Performance

22 hrs @ 100°C

12-15%

25-30%

2× better

70 hrs @ 100°C

18-22%

35-40%

1.8× better

22 hrs @ 125°C

15-18%

30-35%

1.9× better

70 hrs @ 125°C

22-25%

40-45%

1.8× better

Mill Benefit

• Consistent Sealing: Maintains force throughout cycle life

• No Retightening: Stays tight without adjustment

• Longer Service Life: Delays replacement intervals

• Energy Efficiency: No gradual leakage increase

Feature 18: High Tear Strength

Technical Description

Our compound delivers exceptional tear resistance (35-45 kN/m), protecting against installation damage and in-service tearing.

Tear Resistance Engineering

Tear strength is critical because:

• Installation stresses: Stretching around corners

• Operational stresses: Door movement, pressure cycles

• Accidental damage: Debris, tools, sharp edges

Comparison

Parameter

RUBASIA Endless Ring

Field-Spliced Joint

Joint Strength

100% of parent material

60-80% of parent

Installation Time

15-20 minutes

1-2 hours

Leak Potential

Zero at joint

Potential failure point

Appearance

Seamless

Visible joint

Consistency

Perfect circle

May have flat spots

Profile

Cut Length

Bonding Area

8.5mm × 20mm

28 mm

560 mm²

9.5mm × 20mm

28 mm

560 mm²

10.0mm × 20mm

28 mm

560 mm²

Profile

Color Code

Identification

8.5mm L-shaped

Black (Standard)

Natural EPDM black

9.5mm L-shaped

Blue stripe

Extruded blue indicator line

10.0mm L-shaped

Red stripe

Extruded red indicator line

Parameter

Treated Surface

Untreated Surface

Friction Coefficient

0.4-0.5

0.8-1.2

Adhesion Force

Negligible

May stick significantly

Door Opening Force

Normal

May require extra force

Seal Damage on Opening

None

Possible tearing

Test Condition

RUBASIA EPDM

Industry Standard

Performance

22 hrs @ 100°C

12-15%

25-30%

2× better

70 hrs @ 100°C

18-22%

35-40%

1.8× better

22 hrs @ 125°C

15-18%

30-35%

1.9× better

70 hrs @ 125°C

22-25%

40-45%

1.8× better

Mill Benefit

• Installation-Friendly: Withstands handling and stretching

• Damage Resistant: Survives minor debris and imperfections

• No Crack Propagation: Small nicks don't become big tears

• Reliable Service: Fewer in-service failures

Feature 19: Abrasion Resistance

Technical Description

With abrasion loss of only 120-150 mm³ (DIN 53516), our EPDM withstands repeated door movements without surface degradation.

Why Abrasion Resistance Matters

Each sterilization cycle involves:

1 Door opening (seal exposed)

2 Door closing (compression)

3 Slight movement during pressure cycling

4 Potential debris contact

Test Results (DIN 53516)

Cycles

RUBASIA Surface Condition

Standard EPDM

1,000

Like new

Minor wear

5,000

Minimal surface change

Visible wear

10,000

Good condition

Significant wear

20,000

Acceptable

Worn through

Mill Benefit

• Long Surface Life: Maintains smooth sealing surface

• No Debris Generation: Doesn't shed particles into system

• Consistent Performance: Surface condition doesn't degrade sealing

• Multiple Door Cycles: Survives thousands of operations

Feature 20: Thermal Stability - No Post-Cure Hardening

Technical Description

Unlike some rubber compounds that continue to cure and harden in service, our fully-peroxidized EPDM reaches complete cure during manufacturing and maintains stable properties throughout its life.

The Post-Cure Phenomenon

Some materials:

• Continue crosslinking at service temperatures

• Increase in hardness over time

• Lose flexibility progressively

• Become brittle before end of service

RUBASIA Stability

Service Time

Hardness Change

Tensile Retention

Elongation Retention

Initial

75 Shore A

100%

100%

6 months

75-76 Shore A

98%

97%

12 months

76-77 Shore A

95%

94%

18 months

77-78 Shore A

92%

90%

24 months

78-79 Shore A

88%

85%

Mill Benefit

• Consistent Flexibility: Doesn't become brittle

• Predictable Performance: Properties don't drift

• Full Service Life: Actually lasts as long as predicted

• Safe Removal: Comes out in one piece, not crumbling

Feature 21: Ozone and UV Resistance

Technical Description

Our EPDM formulation provides complete resistance to ozone cracking and UV degradation, making it ideal for outdoor sterilizer installations exposed to Borneo's intense tropical sun.

The Ozone Threat

Ozone (O₃) in the atmosphere attacks unsaturated rubber polymers, causing:

• Surface cracking perpendicular to stress

• Progressive crack growth

• Premature failure

Test Results (ASTM D1149)

Material

Tear Strength (kN/m)

Relative Performance

RUBASIA EPDM

35-45

100% baseline

Standard EPDM

25-30

70%

Economy EPDM

15-20

45%

Silicone

10-15

30%

Cycles

RUBASIA Surface Condition

Standard EPDM

1,000

Like new

Minor wear

5,000

Minimal surface change

Visible wear

10,000

Good condition

Significant wear

20,000

Acceptable

Worn through

Service Time

Hardness Change

Tensile Retention

Elongation Retention

Initial

75 Shore A

100%

100%

6 months

75-76 Shore A

98%

97%

12 months

76-77 Shore A

95%

94%

18 months

77-78 Shore A

92%

90%

24 months

78-79 Shore A

88%

85%

Mill Benefit

• Outdoor Durability: Perfect for external door installations

• No Surface Cracking: Maintains smooth sealing surface

• Long-Term Reliability: Years of tropical exposure

• Aesthetic Appearance: Looks professional, not degraded

Feature 22: Hydrolysis Resistance - No Water Degradation

Technical Description

Our EPDM compound is inherently resistant to hydrolysis, maintaining properties even in continuous contact with high-temperature steam and water.

The Hydrolysis Mechanism

Some polymers (particularly polyurethanes and some polyesters) undergo hydrolytic degradation where water molecules attack the polymer backbone, causing:

• Chain scission (breaking)

• Loss of mechanical properties

• Premature failure

EPDM Advantage

EPDM's saturated hydrocarbon backbone:

• No hydrolyzable groups: Carbon-carbon bonds unaffected by water

• Steam stable: Properties maintained in wet environments

• No water absorption: Minimal swelling (<1%)

Mill Benefit

• Steam Environment Optimized: Designed for sterilizer duty

• No Swelling: Maintains dimensions in wet conditions

• Consistent Properties: Wet or dry, performance same

• Long Steam Life: Years of continuous steam exposure

Feature 23: Wide Temperature Range Capability

Technical Description

Our EPDM maintains useful properties across an exceptionally wide temperature range: -50°C to +150°C continuous, with peaks to 160°C.

Temperature Performance Profile

Temperature

Behavior

Application Relevance

-50°C

Brittle point

Storage minimum

-40°C

Flexible

Cold morning installation

-20°C

Good flexibility

Winter operation

0°C

Normal flexibility

Typical startup

25°C

Optimal

Installation temperature

100°C

Excellent

Normal operation

130°C

Excellent

Standard sterilization

150°C

Good

Peak conditions

160°C

Short-term

Emergency spikes

Mill Benefit

• All-Climate Performance: Works in any Borneo location

• Cold Installation: Flexible even in early morning

• Hot Operation: Stable at full sterilization temperature

• Safety Margin: Handles temperature upsets

PART 6: QUALITY AND RELIABILITY FEATURES

Feature 24: 100% Dimensional Inspection

Technical Description

Every meter of RUBASIA EPDM packing undergoes real-time dimensional monitoring with laser micrometers, and finished rolls receive final verification.

Inspection Protocol

Inspection Point

Method

Frequency

Acceptance Criteria

In-process profile

Laser micrometer

Continuous

±0.2 mm

In-process thickness

Laser

Continuous

±0.2 mm

Visual surface

Human inspection

Continuous

No defects

Finished dimensions

Calibrated gauge

Every roll

±0.2 mm

Length verification

Digital counter

Every roll

±0.5%

Hardness

Durometer

Batch sample

70-85 Shore A

Mill Benefit

• Guaranteed Fit: Every roll meets specifications

• No Surprises: Consistent dimensions roll to roll

• Quality Assurance: Documented verification

• Traceability: Records available for every batch

Feature 25: Batch Traceability System

Technical Description

Every roll of our packing carries a unique batch code providing complete traceability from raw materials to finished product.

Traceability Information

Each batch code tracks:

• Raw material lots: Polymer, carbon black, oils, chemicals

• Compound formulation: Exact recipe and mixing parameters

• Production date: When manufactured

• Extrusion line: Which line and operator

• Quality tests: Results of physical testing

• Shipment date: When and where delivered

Mill Benefit

• Quality Verification: Full documentation available

• Problem Investigation: If issues arise, we can trace

• Consistency Tracking: Monitor quality over time

• ISO Compliance: Supports your quality system

Feature 26: Mill Test Certificates Available

Technical Description

Upon request, we provide comprehensive Mill Test Certificates documenting actual physical properties for each production batch.

Certificate Data Included

Exposure

RUBASIA EPDM

Non-Ozone-Resistant Rubber

50 pphm ozone, 20% strain, 72 hrs

No cracking

Severe cracking

100 pphm ozone, 20% strain, 72 hrs

No cracking

Failed

Outdoor exposure, 6 months

No change

Crazing visible

Outdoor exposure, 12 months

Surface unchanged

Deep cracks

Temperature

Behavior

Application Relevance

-50°C

Brittle point

Storage minimum

-40°C

Flexible

Cold morning installation

-20°C

Good flexibility

Winter operation

0°C

Normal flexibility

Typical startup

25°C

Optimal

Installation temperature

100°C

Excellent

Normal operation

130°C

Excellent

Standard sterilization

150°C

Good

Peak conditions

160°C

Short-term

Emergency spikes

Inspection Point

Method

Frequency

Acceptance Criteria

In-process profile

Laser micrometer

Continuous

±0.2 mm

In-process thickness

Laser

Continuous

±0.2 mm

Visual surface

Human inspection

Continuous

No defects

Finished dimensions

Calibrated gauge

Every roll

±0.2 mm

Length verification

Digital counter

Every roll

±0.5%

Hardness

Durometer

Batch sample

70-85 Shore A

Mill Benefit

• Verified Quality: Proof of performance

• Specification Compliance: Confirm meets requirements

• Audit Support: Documentation for quality audits

• Peace of Mind: Know what you're installing

Feature 27: Extended Shelf Life

Technical Description

Properly stored RUBASIA EPDM packing maintains full performance for 5+ years from manufacture date, significantly exceeding industry norms.

Storage Life Comparison

Condition

RUBASIA EPDM

Standard EPDM

Optimal storage (cool, dark)

5+ years

2-3 years

Good storage

3-4 years

1-2 years

Fair storage

2-3 years

6-12 months

Storage Recommendations

For maximum shelf life:

• Temperature: Below 25°C preferred

• Humidity: Dry environment

• Light: Dark or UV-protected

• Ozone: Away from motors, welders

• Deformation: Uncoiled, relaxed position

Mill Benefit

• Buy in Bulk: Stock up without waste

• Emergency Spares: Keep inventory ready

• No Rush: Use at your pace, not expiration date

• Cost Effective: Bulk purchasing discounts

PART 7: APPLICATION-SPECIFIC FEATURES

Feature 28: Palm Oil Mill Specific Formulation

Technical Description

Unlike generic EPDM, our compound is specifically formulated for palm oil mill conditions, including resistance to:

• Palm oil vapor exposure

• Fruit acids and volatiles

• Cleaning chemicals

• High humidity environment

Formulation Adjustments

Component

Adjustment

Purpose

Antioxidants

Enhanced

Long-term heat stability

Crosslink density

Optimized

Steam resistance

Plasticizers

Low volatility

No vapor loss

Fillers

Purified

No extractables

Mill Benefit

• Designed for Your Mill: Not a generic product

• Proven in Service: Thousands of successful installations

• Optimized Performance: Formulated for your conditions

• Trusted by Industry: Preferred by major plantation groups

Feature 29: Compatibility with All Sterilizer Types

Technical Description

Our L-Shaped packing is designed to fit all major sterilizer brands and configurations found in Sabah, Sarawak, and Brunei.

Compatible Applications

Sterilizer Type

Orientation

Typical Diameter

Horizontal sterilizers

Horizontal

2,000-3,500 mm

Vertical sterilizers

Vertical

1,500-2,500 mm

Cage sterilizers

Various

1,700-2,700 mm

Continuous sterilizers

Continuous

Custom sizes

Brand Compatibility

• All major OEM equipment

• Locally fabricated sterilizers

• Rebuilt and refurbished units

• Custom door configurations

Mill Benefit

• Universal Fit: One product for all your sterilizers

• Simplified Inventory: Stock one type for multiple units

• Proven Compatibility: Works with your existing equipment

• No Modification Required: Direct replacement

Feature 30: Energy Efficiency Enhancement

Technical Description

By preventing steam leakage, our packing directly contributes to measurable energy savings through reduced fuel consumption.

Energy Loss Calculation

For a typical 3.0 bar sterilizer with a 2mm gap around a 2,300mm door:

Parameter

With Leak

With RUBASIA Seal

Steam loss per hour

50-100 kg

<1 kg

Daily loss

1,200-2,400 kg

<24 kg

Annual loss

438-876 tonnes

<9 tonnes

Extra fuel cost

RM 50,000-100,000

Negligible

Energy Savings Documentation

Mills switching to RUBASIA report:

• 15-25% reduction in sterilization steam consumption

• 10-15% reduction in boiler fuel usage

• Faster cycle times due to maintained pressure

• Better fruit quality from consistent cooking

Mill Benefit

• Immediate Payback: Savings from first day

• Reduced Carbon Footprint: Lower fuel consumption

• Process Efficiency: Faster, more consistent sterilization

• ROI: Typically pays for itself in weeks

Test

Method

Values Reported

Hardness

ASTM D2240

Shore A value

Tensile Strength

ASTM D412

MPa value

Elongation

ASTM D412

Percentage

100% Modulus

ASTM D412

MPa value

Specific Gravity

ASTM D297

g/cm³

Compression Set

ASTM D395

Percentage

Condition

RUBASIA EPDM

Standard EPDM

Optimal storage (cool, dark)

5+ years

2-3 years

Good storage

3-4 years

1-2 years

Fair storage

2-3 years

6-12 months

Component

Adjustment

Purpose

Antioxidants

Enhanced

Long-term heat stability

Crosslink density

Optimized

Steam resistance

Plasticizers

Low volatility

No vapor loss

Fillers

Purified

No extractables

Sterilizer Type

Orientation

Typical Diameter

Horizontal sterilizers

Horizontal

2,000-3,500 mm

Vertical sterilizers

Vertical

1,500-2,500 mm

Cage sterilizers

Various

1,700-2,700 mm

Continuous sterilizers

Continuous

Custom sizes

Parameter

With Leak

With RUBASIA Seal

Steam loss per hour

50-100 kg

<1 kg

Daily loss

1,200-2,400 kg

<24 kg

Annual loss

438-876 tonnes

<9 tonnes

Extra fuel cost

RM 50,000-100,000

Negligible